Window



F l Ill l l I l LI 2. sylesis-sheet 2 Z'Yy ............ www W/ 7 r 11,1:f1 J 7 K WINDOW D. J. DUNBAR Filed Sept. f2, 1928 July 1, 1930.

Patented July 1,193@L I :DANIEL DUNBAR,I0F PHILADELPHIA, BENNSYLVANIAWimuow Appncation mea september 12, 192s. serial' Yno. 305,407.

is hereinafter described, my invention may be employed with lparticularadvantage in what are known as double-hungwindows, altho not limited towindows of that type.

It is an object and effect of my invention to provide weathering'ystrips, preferably of spring metal, to renderthe joints between the sashand thel Vframe yweather-proof; such `weathering strips being preferablyrigidly i connected with the sash ytrames at one edge and having freeedges in sliding Contact witha portion of the window frame, preferablythe parting strip between the sashes in al double-hung window. A furtherobject and eiiiect ofmy invention is to substitute for the ordinarycounter-balance sash weights and cords, springs which are coiled in thewindow irame and have means'connecting them with the sash, preferablytape-like strips' of f flexible vmetal respectively engaged withveathering strips upon opposite sides of the sash. As hereinafterdescribed, the springs are provided with metal housings mounted intheopposite jambe of the window trame and in such relation'. therewith thatthe springs may be removed'and replaced withont removal of-the'sash fromthe window frame. My invention also includes anti-rate sheet metalsprings each adapted to frictionally engage two sashes An adjunct-ivefeature of my invention is the formation of the Window sa'shes inseparable parts respectively lit-ting in sliding engagement with thewin- 3l dow 'frame and holding the glass oreotherv closure. Thelatterie'atnre of construction` vslide in the j amb.

Vt-iing devices in the window'. trame including l they extendvinrecesses 18 in said jambs 3 seal the 'joints between the vsashes andsaid view o'l` said structure, taken' on the'line'y II, II in Fig. I,but on alarger scale.

vFig .I-II isa fragmentary planisectional view of said structure, takenon the line III,

III in Fig. I, but on a larger scale.

Fig. IV is a fragmentary elevation of ther inner face of the windowjambshown in section in Figs. II and III.

Fig. Vis a ifragmentary vertical sectional view,-taken` on. the line V,V 'in Figs. I, II andIII.V t

Fig. VI is a fragmentary vperspective Aview of a piece of one of theouter separable sash stiles shown in Fig. I, which'is adaptedto Fig.VIIis a fragmentary perspective view of a piece 4ot 'one of the innersash .frames shown in Fig. I which is normally rdetachably secured inrigid relation with theiouter stile shown in FigfVI. Fig'. VIII showsmodifiedv form of inner sashifr'ame. v

In said figures; the window framev ,1 iscomposed 'of the lintel 2,opposite jambs 3 and 'sill 4t. Said. Vframe jambseachhave a]partingstrip 6 between the inner molding 7' and the 'outer molding 8 andforming slideways 9 vand 10 for the double-hung sashes `12 and 1-3.

-Eaeh of said sash 12l and 13 has, upon op-fr posite ksides thereof,oppositely counterpart weathering strips 15, vconveniently rigidlyconnected therewith, at one edge, by screws 16,1ii" the sash is formedof wood as indicated.4 However, such weathering strips may be otherwisesecured upon sash frameswhich are formed of metal. Said weatheringstrips fare formedr oit-resilient sheet metal, `preferably y bronze, andso vconstructed `and'arrangedthat and bear upon said parting strips 6vin ,9 weather-tight relation therewith'from thel top tothe bottom Vofeach sash.

However, altho I prefer toeXtend` said' l weathering strips 15 insubstantially parallelV relation with' theplanes of the sash frames 12andlS, they may be otherwise shaped, prof y,vided that they extend insliding contact with l' some portion'y of the windowy j'ambs so' as to jambs.

The weathering strips on each of said sash 12 and 13 have slots 20 nearthe lower ends thereof for detachable connection with the ends offlexible connectors 21 respectively extending to spring drums 22; theupper ends of said connectors being detachably fitted in slots 24 insaid drums. Said drums have square axial openings fitted uponsquaredportions 25 of the spring arbors 27 which are j ournaled, at their outerends, in housing plates'28 and Vare journaled, intermediate of theirlength, in the bearing plates 29. Said drums are held upon said arbors27 i only by Cotter pins extending thru said arbors and said bearingplates 29 are detachably connected with the respective jambs,conveniently by screws 31. Each of said housing plates 28` is common toa pair of arbors and is detachably secured'in the window frame,y,conveniently by screws 33, if thevframe isv wood, as indicated, but maybe otherwise rigidly connected with tlie frame, if the latter is made ofmetal.

Between said bearing plates 29 and said housing plates 28, Vsaid arborshave axial slots for engagement with the inner ends of respective sashcounterbalance springs 36 which are evolutely coiled around'said arborsand have their outer ends secured to said housing plates by respectivestuds 37. Said springs may be adjusted to afford anydesired tension uponthe sash to counterbalance the weight of the latter, by windingVtheirrespective arbors when the drums are removed from the arbors; saiddrums being placed upon the arbors when the springs are at the propertension# Y Itis to be understood that the construction and arrangementabove described are such that said drums 22, with the `flexibleconnectors 21 thereof7 are rendered accessible by merely removing thecover plates 39 which are heldin substantially flush relation with theinner faces of the ainbs V3, conveniently by screws 40. Said coverplates'may be removed whenever the sashes 12 and 13Y are shifted to suchposition as to expose said plates. Upon the removal of, said coverplates,vthe cotter pins 30-may be removed and the drums 22 slippedofftheir respective arbors 27. If it is desired to remove the springs, itisy only necessary to remove the bearing plates 29; whereupon, therespective spring-arbors and springs may be lifted out 'of the jamb. Theinner ends ofsaid arbors may be conveniently provided with slots 42 forengagement with a screw driver or sim- L ilar tool, whereby the arborsmay be turned 46 of said strips which are conveniently. de` tachablysecured by screws 47. SuchV springs 44 frictionally engage theweathering strips 15 on the sashes 12 and 13 and prevent ratf asindicated at 5S; the glazed and screened frames 51 and 55 beinginterchangeable without removal of said outer stiles from the jambs 3. Y

.In order to insure that the inner sash frames aforesaid may be readilyvfitted in Vweather-tight relation with said vouter stiles; l prefer toprovide the contiguous faces 53 andr59 thereof with respectiveoppositely counterpartgrooves 60 andfl to receive the cylindricalweather strips 63 which extend across the Vspacesbetween said stiles andinner frames and may be secured to ,said stiles by nails 65, or may beotherwise heldin operative position. Y

As above indicated; windows embodying my invention may be formedentirely of metal and, therefore, l do not desire to limit myself to theprecise details of construction and arrangement herein set forth, as itis obvious that various modifications may be made therein withoutdeparting from the essential features of. my invention, as defined inthe appended claims.

l claim: Y y

1. ln a window, the combination with a window frame including' oppositej ambs hav ing respective sash-slideways5 of a pair of sash stilesfitted to slide'in said ways; a pair Vof weatheringstrips, rof springmetal, each sliding contact withA one of saidjambe;

whereby the joints'between saidV frame and sash are renderedwater-proof; wherein the weathering strips vhave slots; and flexibleconnectors, comprising metal tapes, are respectively engaged vat. oneend in said slots, and have their other ends extending around drums incoo erativerelation with means VadaptedV to counterbalance said sash.

2. In awindow, the combination with a window frame including oppositejambs having respective sash slideways; of a pair of sash stiles fittedto slide in said ways; a pair of weathering strips, of spring metal,each having one edge rigidly connected with one of said stiles, andhaving Aits'fiee edge in sliding contact with one ofsaid j ambs; wherebythe joints between .said frame and sash are rendered water-proof;wherein the weathering strips have slots; and flexible connectors,comprising metal tapes, are respectively en- Y gaged at one end in saidslots, and have their ing respective sash slideways;l of a pair of sashstiles fitted to slide in said ways; a pair of weathering strips, ofspring metal, each having one edge rigidly connected with one of saidstiles, and having its free edge in' 'sliding contact withk one of saidj ambs; whereby the' joints between said frame and sash are renderedwater-proof; having sash balancing means including rotary arbors.journaled in said jambs, vupon respectively opposite sides of thewindow; springs evolutely coiled around said arbors, each connected atone endv to one of said arbors and fastened at the other end in saidjambs; drums on said arbors; and flexiblel connectors, each connected atone end to a drum, and extending `around said drinn toa sash. j 4. ln awindow, the combination ,with a window frame including opposite janibshaving respective sash slideways;` of a pair of sash stiles fittedtoslide in said ways; a pair of weathering strips, of spring instal,Veach having one edge rigidly connected kwith one of said stiles, andhaving its free edge in sliding contact with one of said jambs;wherebythe joints between said frame and sash are rendered water-proof;having sash balancing means including rotary arbors journaled insaidjainbs, upon respectively opposite sides of `the window; springsevolutely coiled around said arbors, each-connectedat one end to one ofsaidl arbors and fastened at the other end in said ambs; drums on saidarbors; and flexible connectors, each connected at one end to adruin,and extending around said drum to a sash; each of said arbors beingjournaled in a bearing plate, detachably lixed in one of said jainbs,between thespring and drum connected with that arbor.

5. Vln a window, the combination with a window frame including oppositej ainbs having respective sash slideways; of a pair of sash stileslitted to slide'in saidways; a pair of weathering strips, of springmetal, each having one edge rigidly connected with one of said Stiles,and having its free edge in sliding Contact with one o-f said ambs;whereby the joints between said frame and sash are rendered water-proof;having sash balancing means including a metal housing plate at the outerportion of a amb; a bearing plate intermediate of the thickness `of saidjamb an arbor journaled in said housing and bearing plates and havingslot extending parallel with its axis between said plates g an evolutelycoiled spring of sheet metal having one end `engaged in said arbor slot,between :said

plates, and the other end engaging a stud in fixed relation with saidhousingplate; said arbor having a .polygonal portion extending inwardlyfrom said bearing plate; a drinn having an axial opening fittedforengagement with vsaid arbor, and means for engaging the end of aflexible connector formed of sheet metal; the opposite end of saidvconnector being attached to a sash.

dfi double-hung window including op- Y posite j ainbs having sashslideways; and sash balancing means including a metal housingplate atthe outer portion of a jainb; two bearing plates intermediate of thethickness of said jamb; two arbors respectively joui'-Y naled attheirouter ends in bearings in said.

housing plate, in spaced relation; said arbors beingindependently-journaled in respective bearings in said bearing plates;springs between said plates, respectively encircling said arbors andtending to independently turn said arbors; drums on said arbors at thein-V- ward side of said bearing platesandflexible connectors, eachconnected at one endto one' of'said drums, and extending around thatldrum to a sash; whereby, said sashes are independently balanced 'andsaid balancing springs are indejiendently accessible by removal ofthekrespective bearing plates. n

'7. ln a window, the combination'witli a window frame including oppositejambs having respective sash slideWayS; of a pair of sash stiles tted toslide in said ways; a pair of weathering strips of spring metal eachliavingone edge rigidly connected with'one of-said stiles, and havingits free edge iii sliding contact with one of .said jainbs wherebyVvthejoints between said frame 'and' sashl are rendered weather-proof;Vsash balancing,

ineans in each of said jambs, including Vrespective spring arborsjournaled in said janibs with their-axes parallel with the plane of saidsash; springs tending-to turn said arbors; and respective drums on`vsaid' arbors each carrying a fiexible connector extending i therefrom toa sash.

8. A window as in claim 7 wherein the drums areadapted to fit'saidarbors indiifer-y f ent'positions of rotation;whereby the springs ,e

inay be rotatably adjusted, to vary the tension thereof, by rotation ofsaid arbors, before engagement ofthe drums withsaid arbors.

9,. A window as.v in claim k7 k,wherein the a-rborsfhave slotsrespectively engaging one end of their springs and are polygonal theirportions adapted L' for 'engagement with; the drums; whereby saidv drumsmay be connected with saidA arbors in diiierent positions ofthe latterin accordance with diiferent positions of adjustment of the springs,adapted to. counterbalance sashes of different weights.

' 10. A window as in claim 6; wherein the drums are adapted to be ttedupon said arbors in diilerent positions oic rotation of said arbors andsprings; whereby the stress of said springs upon said sashes may beindependently adjnstably varied.

11. ln a .window structure, the combination with a substantially planestrip ot resilient metal substantially as long `as the vertical extentVot a window sash stile and having at one edge thereof means 'fordetachable engagement with such stile and having at the opposite edgeand near one end thereof means tor engaging a flexible connector; offlexible connector comprising va substantially plane metal tape adapted,at one end, for detachable connection with said strip by the attachingmeans of the latter; a drum attached to the opposite end of said tapeand encircled by said tape; and sash counterbalancing means operativelyconnected with said tape drum, including spring arbor in detachablecoaxial relation with said drum and having its axis parallel with theplane ot the window; a metal traine in which said spring arbor isjournaled; and a spring formed ot a normally plane strip of metaloperatively engaged at its inner end with said arbor, evolutelycoiledaround said arbor, and sngaged'at its outer end with said trame;

12. A window structure as in claim 11,

adapted for a double-hung' window and wnereinsaid metal trame hasjournals at erent heights tor the different spring springs; whereby saidarbors are held in obliquely spaced relation with respect to the planeoit the window, and are adapted for inclusion in jamb oi minimum widthwith springs which when coiled are of greater diameter than the width otthe sash.

l13. ln a window structure; sash counterbalancinel means adapted to beitted in the window :frame from the outer face of the winlow amb,including a housing plate adapted to lit flush with .the outer tace ofthe jamb and extending in a pla-neV transverse to the plane oit thewindow, and having screw openings tor detachable connection with thejamb,

A ind a pair oiu stud screws extending inwardly from said housing plate,parallel with the plane Iot thewiiidow and havingV nuts'at theinner'ends thereof; and an arbor bearing intermediate of said pair ofscrews; and aspring terminal stud in eccentric `relation' with saidarbor bearing; a bearing plate extending in parallel relation with saidhousing plate and operativelyfconnected with the' latter by said pair ofscrews and nuts, and

vhaving an arbor bearing intermediate thereof in coaxial relation withthe arbor bearing in sair housing plate; a spring arbor journaled insaidarbor bearings, having a cylindrical portion fitted in said housing andbearing plates, and a squared portion extending iioors provided withrespective drums and inwardly from said bearing plate; the, axisoit-said arbor extending parallel with the plane ot the window; a springformed of a strip ot primarily plane metal havin its inner end engagedin a slot in said ar or and its outer' end engaged on said housingplatel stud; a cover plate having attaching Vmeans at opposite endsthereof and adapted to extend in parallel relation with said housing andbearing plates; a rotary drum detachably rigidly'connected with thesquared end ot saidarbor between said bearing plate and cover plate; anda lexible connector having its inner end connected with` said drum andVl so evolutely coiled thereon; and having means at its outer'end fordetachable connection with a sash.

la. A window structure Yas in claim ,13;

wherein the means at the outer end ot the spring for detacnalolyconnecting it with the sash is a metallic weathering strip having a slotengaging the end of the spring, and

ing van outer housing plate,.an intermediate bearing plate, and an innercover plate in parallel spaced relation; a spring arbor journaled insaid housing plate and bearing plate; a Vdrum fixed on said spring arborbetween' said bearing plate and cover plate; a flexible connectorevolutely coiled on said drum and having'its inner end connected tosaiddrum and its outer end provided with means for detachably engaging asash; and a spring evoluteiy coiled on said arbor between said housingplate and bearing kplate andhaving its inner end connected to said arborand its outer end connected to said housing plate. ln testimony whereof,I have hereunto signed my name at Philadelphia, Pennsylvania, thislthday of'August, 1928.

DANIEL J. DUNBAR.

